//
//  UserAccount.swift
//  Weibo
//
//  Created by 李振兴 on 15/10/17.
//  Copyright © 2015年 李振兴. All rights reserved.
//

import UIKit

class UserAccount: NSObject {
    /// 用于调用access_token，接口获取授权后的access token
    var access_token: String?
    /// access_token的生命周期，单位是秒数
    /// 一旦从服务器获得过期的时间，立刻计算准确的日期
    var expires_in: NSTimeInterval = 0 {
        didSet{
            expiresDate = NSDate(timeIntervalSinceNow: expires_in)
        }
    }
    /// 过期日期
    var expiresDate: NSDate?
    
    /// 当前授权用户的UID
    var uid: String?
    /// 用户昵称
    var screen_name: String?
    /// 用户头像地址（大图），180×180像素
    var avatar_large: String?
    
    init(dict:[String:AnyObject]){
        super.init()
        setValuesForKeysWithDictionary(dict)
    }
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {}
    
    override var description:String {
        let keys = ["access_token","expires_in","expiresDate","uid","screen_name","avatar_large"]
        return dictionaryWithValuesForKeys(keys).description
    }
    
    func encodeWithCoder(aCoder: NSCoder) {
        
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(screen_name, forKey: "screen_name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
    }
    
    /// 解档 - 从磁盘加载二进制文件，转换成对象时调用 － 跟网络的反序列化很像
    /// `required` - 没有继承性，所有的对象只能解档出当前的类对象
    required init?(coder aDecoder: NSCoder) {
        
        access_token = aDecoder.decodeObjectForKey("access_token") as? String
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as? NSDate
        uid = aDecoder.decodeObjectForKey("uid") as? String
        screen_name = aDecoder.decodeObjectForKey("screen_name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String
    }
    func saveUserInfo(){
        var path = NSSearchPathForDirectoriesInDomains(.DocumentDirectory,
            .UserDomainMask, true).last!
        path = (path as NSString).stringByAppendingPathComponent("userAccount.plist")
        //print("path:\(path)")
        NSKeyedArchiver.archiveRootObject(self, toFile: path)
    }
}
